What are the steps to reproduce your problem?
1. Create Spring Boot application with Camunda Webapp starter included
2. Define following configuration parameter: camunda.bpm.webapp.index-redirect-enabled: false
3. Start the application and open localhost:8080

What is the problem?
Redirection to index.html bundled inside Camunda Webapps and in turn redirection to /app/tasklist takes place.

What would be the expected behavior:
Redirection should not happen.